Implementation of Stack

import java.util.Scanner;

class myStack{

               

                private int top;

                private int item[];

                private int stackSize;

               

                myStack(int size){

                                stackSize=size;

                                top=-1;

                                item=new int[stackSize];

                }

                public boolean isFull(){

               

                                return (top==stackSize-1);

                }

               

                public boolean isEmpty(){

                                return (top==-1);

                }

                public void push(int x){

                                item[++top]=x;

                }

                public int pop(){

                                return item[top--];

                               

                }

               

                public static void main(String[] a){

                                System.out.print("How many numbers of item to push in to the stack :");

                                Scanner sc=new Scanner(System.in);

                                int size=sc.nextInt();

                                myStack stack=new myStack(size);

                                System.out.println();

                                System.out.println("Size of the stack is :"+size);

                                while(!stack.isFull()){

                                                System.out.print("Enter an element to push to stack :");

                                                int k=sc.nextInt();

                                                stack.push(k);

                                                System.out.println();

                                }

                                while(!stack.isEmpty()){

                                                int ip=stack.pop();

                                                System.out.println("Item popped: "+ip);

                                }

                }

}